File: screen_lock_notification_blocker.cc

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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/notifications/screen_lock_notification_blocker.h"

#include "base/time/time.h"
#include "chrome/browser/idle.h"

namespace {
const int kUserStatePollingIntervalSeconds = 1;
}

ScreenLockNotificationBlocker::ScreenLockNotificationBlocker(
    message_center::MessageCenter* message_center)
    : NotificationBlocker(message_center),
      is_locked_(false) {
}

ScreenLockNotificationBlocker::~ScreenLockNotificationBlocker() {
}

void ScreenLockNotificationBlocker::CheckState() {
  bool was_locked = is_locked_;
  is_locked_ = CheckIdleStateIsLocked();
  if (is_locked_ != was_locked)
    NotifyBlockingStateChanged();

  if (is_locked_) {
    timer_.Start(FROM_HERE,
                 base::TimeDelta::FromSeconds(kUserStatePollingIntervalSeconds),
                 this,
                 &ScreenLockNotificationBlocker::CheckState);
  }
}

bool ScreenLockNotificationBlocker::ShouldShowNotificationAsPopup(
    const message_center::NotifierId& notifier_id) const {
  return !is_locked_;
}